The Scouting Challenge theme was created while playing with ideas for a revamp of the 1st Croydon Scout Group website which is why you will see the 1st Croydon name appearing in many screen shots. I was never able to implement this revamp and am now no longer involved with it.
The Scouts 4 WordPress theme by Scouting Themes 4 WordPress would appear to have been developed in co-operation with The Scout Association and is linked to from their website so that seemed to be a good place to start. It is written in XHTML and so was immediately turned into HTML5 and then a number of errors in the HTML, CSS and PHP were dealt with before attempts were made to tidy up all the code to make it easier to maintain. Eventually so many changes were being made, even before any redesign was being considered, that it was decided that a completely new theme was needed, which was named after the HQ of the 1st Croydon, Beverley Hall. Hundreds of hours have been put into developing the theme since that point. The theme was rebranded as 'Scouting Challenge' with the release of version 5.0.0 in May 2015.
The theme has been made extremely easy to configure to individual requirements with around a hundred configuration and customisation options available, all of which can be accessed from the WordPress admin menu with the help of a plugin.
This section of the website covers the main features of the theme. The theme is quite flexible so please don't just look at the pictures as they only tell a fraction of the story.
This section also includes a link to the 'sample front page' which is the equivalent of the default front page of the theme when first installed (except it picks up this documentation theme's customisations, so for example there is a different choice of colours, a top WordPress Navigation menu is being used, there are variable width 'Navbar' items, and additional Navbar in the footer). On this documentation site we are using a Static Front Page rather than the default so it is acting as the Blog Posts Index Page. If that doesn't mean anything to you then perhaps reading the WordPress home pages page will help clarify things.